Question

why sky appears blue ? ​

Answer 1

⭐ $\tt\underline\red{ \: \: Reason \: \: :- }$

Sky appears blue due to scattering of sun light in atmosphere.

• Scattering increases with decrease of wavelength.
• Human eye is more responsible to blue among smaller wavelengths.

Hence, sky appears blue.

Answer 2

The sky appears blue due to the scattering of light.

Explanation:

• The appearance of the sky as blue colour is due to the Raleigh scattering.
• The blue colour present in nature is one of the electromagnetic radiation colours among the seven 'vibgyor' colours.
• The blue colour has the smallest wavelength, by which it scatters the most in the sky, oceans and seas.
• The reason is that when white light (sunlight) obstructs the dust particles present in the atmosphere, it scatters in seven colours.
• All the colours are not visible as they have different wavelengths, but blue has the shortest wavelength by which it scatters the most.